1 //===- PassManagerBuilder.cpp - Build Standard Pass -----------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the PassManagerBuilder class, which is used to set up a
11 // "standard" optimization sequence suitable for languages like C and C++.
13 //===----------------------------------------------------------------------===//
16 #include "llvm/Transforms/IPO/PassManagerBuilder.h"
17 #include "llvm-c/Transforms/PassManagerBuilder.h"
18 #include "llvm/ADT/SmallVector.h"
19 #include "llvm/Analysis/Passes.h"
20 #include "llvm/IR/DataLayout.h"
21 #include "llvm/IR/Verifier.h"
22 #include "llvm/IR/LegacyPassManager.h"
23 #include "llvm/Support/CommandLine.h"
24 #include "llvm/Support/ManagedStatic.h"
25 #include "llvm/Analysis/BasicAliasAnalysis.h"
26 #include "llvm/Analysis/CFLAliasAnalysis.h"
27 #include "llvm/Analysis/ScopedNoAliasAA.h"
28 #include "llvm/Analysis/TargetLibraryInfo.h"
29 #include "llvm/Analysis/TypeBasedAliasAnalysis.h"
30 #include "llvm/Target/TargetMachine.h"
31 #include "llvm/Transforms/IPO.h"
32 #include "llvm/Transforms/Scalar.h"
33 #include "llvm/Transforms/Vectorize.h"
38 RunLoopVectorization("vectorize-loops", cl::Hidden,
39 cl::desc("Run the Loop vectorization passes"));
42 RunSLPVectorization("vectorize-slp", cl::Hidden,
43 cl::desc("Run the SLP vectorization passes"));
46 RunBBVectorization("vectorize-slp-aggressive", cl::Hidden,
47 cl::desc("Run the BB vectorization passes"));
50 UseGVNAfterVectorization("use-gvn-after-vectorization",
51 cl::init(false), cl::Hidden,
52 cl::desc("Run GVN instead of Early CSE after vectorization passes"));
54 static cl::opt<bool> ExtraVectorizerPasses(
55 "extra-vectorizer-passes", cl::init(false), cl::Hidden,
56 cl::desc("Run cleanup optimization passes after vectorization."));
58 static cl::opt<bool> UseNewSROA("use-new-sroa",
59 cl::init(true), cl::Hidden,
60 cl::desc("Enable the new, experimental SROA pass"));
63 RunLoopRerolling("reroll-loops", cl::Hidden,
64 cl::desc("Run the loop rerolling pass"));
67 RunFloat2Int("float-to-int", cl::Hidden, cl::init(true),
68 cl::desc("Run the float2int (float demotion) pass"));
70 static cl::opt<bool> RunLoadCombine("combine-loads", cl::init(false),
72 cl::desc("Run the load combining pass"));
75 RunSLPAfterLoopVectorization("run-slp-after-loop-vectorization",
76 cl::init(true), cl::Hidden,
77 cl::desc("Run the SLP vectorizer (and BB vectorizer) after the Loop "
78 "vectorizer instead of before"));
80 static cl::opt<bool> UseCFLAA("use-cfl-aa",
81 cl::init(false), cl::Hidden,
82 cl::desc("Enable the new, experimental CFL alias analysis"));
85 EnableMLSM("mlsm", cl::init(true), cl::Hidden,
86 cl::desc("Enable motion of merged load and store"));
88 static cl::opt<bool> EnableLoopInterchange(
89 "enable-loopinterchange", cl::init(false), cl::Hidden,
90 cl::desc("Enable the new, experimental LoopInterchange Pass"));
92 static cl::opt<bool> EnableLoopDistribute(
93 "enable-loop-distribute", cl::init(false), cl::Hidden,
94 cl::desc("Enable the new, experimental LoopDistribution Pass"));
96 static cl::opt<bool> EnableNonLTOGlobalsModRef(
97 "enable-non-lto-gmr", cl::init(false), cl::Hidden,
99 "Enable the GlobalsModRef AliasAnalysis outside of the LTO pipeline."));
101 PassManagerBuilder::PassManagerBuilder() {
104 LibraryInfo = nullptr;
106 DisableUnitAtATime = false;
107 DisableUnrollLoops = false;
108 BBVectorize = RunBBVectorization;
109 SLPVectorize = RunSLPVectorization;
110 LoopVectorize = RunLoopVectorization;
111 RerollLoops = RunLoopRerolling;
112 LoadCombine = RunLoadCombine;
113 DisableGVNLoadPRE = false;
115 VerifyOutput = false;
116 MergeFunctions = false;
117 PrepareForLTO = false;
120 PassManagerBuilder::~PassManagerBuilder() {
125 /// Set of global extensions, automatically added as part of the standard set.
126 static ManagedStatic<SmallVector<std::pair<PassManagerBuilder::ExtensionPointTy,
127 PassManagerBuilder::ExtensionFn>, 8> > GlobalExtensions;
129 void PassManagerBuilder::addGlobalExtension(
130 PassManagerBuilder::ExtensionPointTy Ty,
131 PassManagerBuilder::ExtensionFn Fn) {
132 GlobalExtensions->push_back(std::make_pair(Ty, Fn));
135 void PassManagerBuilder::addExtension(ExtensionPointTy Ty, ExtensionFn Fn) {
136 Extensions.push_back(std::make_pair(Ty, Fn));
139 void PassManagerBuilder::addExtensionsToPM(ExtensionPointTy ETy,
140 legacy::PassManagerBase &PM) const {
141 for (unsigned i = 0, e = GlobalExtensions->size(); i != e; ++i)
142 if ((*GlobalExtensions)[i].first == ETy)
143 (*GlobalExtensions)[i].second(*this, PM);
144 for (unsigned i = 0, e = Extensions.size(); i != e; ++i)
145 if (Extensions[i].first == ETy)
146 Extensions[i].second(*this, PM);
149 void PassManagerBuilder::addInitialAliasAnalysisPasses(
150 legacy::PassManagerBase &PM) const {
151 // Add TypeBasedAliasAnalysis before BasicAliasAnalysis so that
152 // BasicAliasAnalysis wins if they disagree. This is intended to help
153 // support "obvious" type-punning idioms.
155 PM.add(createCFLAliasAnalysisPass());
156 PM.add(createTypeBasedAliasAnalysisPass());
157 PM.add(createScopedNoAliasAAPass());
158 PM.add(createBasicAliasAnalysisPass());
161 void PassManagerBuilder::populateFunctionPassManager(
162 legacy::FunctionPassManager &FPM) {
163 addExtensionsToPM(EP_EarlyAsPossible, FPM);
165 // Add LibraryInfo if we have some.
167 FPM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
169 if (OptLevel == 0) return;
171 addInitialAliasAnalysisPasses(FPM);
173 FPM.add(createCFGSimplificationPass());
175 FPM.add(createSROAPass());
177 FPM.add(createScalarReplAggregatesPass());
178 FPM.add(createEarlyCSEPass());
179 FPM.add(createLowerExpectIntrinsicPass());
182 void PassManagerBuilder::populateModulePassManager(
183 legacy::PassManagerBase &MPM) {
184 // If all optimizations are disabled, just run the always-inline pass and,
185 // if enabled, the function merging pass.
192 // FIXME: The BarrierNoopPass is a HACK! The inliner pass above implicitly
193 // creates a CGSCC pass manager, but we don't want to add extensions into
194 // that pass manager. To prevent this we insert a no-op module pass to reset
195 // the pass manager to get the same behavior as EP_OptimizerLast in non-O0
196 // builds. The function merging pass is
198 MPM.add(createMergeFunctionsPass());
199 else if (!GlobalExtensions->empty() || !Extensions.empty())
200 MPM.add(createBarrierNoopPass());
202 addExtensionsToPM(EP_EnabledOnOptLevel0, MPM);
206 // Add LibraryInfo if we have some.
208 MPM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
210 addInitialAliasAnalysisPasses(MPM);
212 if (!DisableUnitAtATime) {
213 addExtensionsToPM(EP_ModuleOptimizerEarly, MPM);
215 MPM.add(createIPSCCPPass()); // IP SCCP
216 MPM.add(createGlobalOptimizerPass()); // Optimize out global vars
218 MPM.add(createDeadArgEliminationPass()); // Dead argument elimination
220 MPM.add(createInstructionCombiningPass());// Clean up after IPCP & DAE
221 addExtensionsToPM(EP_Peephole, MPM);
222 MPM.add(createCFGSimplificationPass()); // Clean up after IPCP & DAE
225 if (EnableNonLTOGlobalsModRef)
226 // We add a module alias analysis pass here. In part due to bugs in the
227 // analysis infrastructure this "works" in that the analysis stays alive
228 // for the entire SCC pass run below.
229 MPM.add(createGlobalsModRefPass());
231 // Start of CallGraph SCC passes.
232 if (!DisableUnitAtATime)
233 MPM.add(createPruneEHPass()); // Remove dead EH info
238 if (!DisableUnitAtATime)
239 MPM.add(createFunctionAttrsPass()); // Set readonly/readnone attrs
241 MPM.add(createArgumentPromotionPass()); // Scalarize uninlined fn args
243 // Start of function pass.
244 // Break up aggregate allocas, using SSAUpdater.
246 MPM.add(createSROAPass(/*RequiresDomTree*/ false));
248 MPM.add(createScalarReplAggregatesPass(-1, false));
249 MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
250 MPM.add(createJumpThreadingPass()); // Thread jumps.
251 MPM.add(createCorrelatedValuePropagationPass()); // Propagate conditionals
252 MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
253 MPM.add(createInstructionCombiningPass()); // Combine silly seq's
254 addExtensionsToPM(EP_Peephole, MPM);
256 MPM.add(createTailCallEliminationPass()); // Eliminate tail calls
257 MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
258 MPM.add(createReassociatePass()); // Reassociate expressions
259 // Rotate Loop - disable header duplication at -Oz
260 MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1));
261 MPM.add(createLICMPass()); // Hoist loop invariants
262 MPM.add(createLoopUnswitchPass(SizeLevel || OptLevel < 3));
263 MPM.add(createInstructionCombiningPass());
264 MPM.add(createIndVarSimplifyPass()); // Canonicalize indvars
265 MPM.add(createLoopIdiomPass()); // Recognize idioms like memset.
266 MPM.add(createLoopDeletionPass()); // Delete dead loops
267 if (EnableLoopInterchange) {
268 MPM.add(createLoopInterchangePass()); // Interchange loops
269 MPM.add(createCFGSimplificationPass());
271 if (!DisableUnrollLoops)
272 MPM.add(createSimpleLoopUnrollPass()); // Unroll small loops
273 addExtensionsToPM(EP_LoopOptimizerEnd, MPM);
277 MPM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds
278 MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies
280 MPM.add(createMemCpyOptPass()); // Remove memcpy / form memset
281 MPM.add(createSCCPPass()); // Constant prop with SCCP
283 // Delete dead bit computations (instcombine runs after to fold away the dead
284 // computations, and then ADCE will run later to exploit any new DCE
285 // opportunities that creates).
286 MPM.add(createBitTrackingDCEPass()); // Delete dead bit computations
288 // Run instcombine after redundancy elimination to exploit opportunities
289 // opened up by them.
290 MPM.add(createInstructionCombiningPass());
291 addExtensionsToPM(EP_Peephole, MPM);
292 MPM.add(createJumpThreadingPass()); // Thread jumps
293 MPM.add(createCorrelatedValuePropagationPass());
294 MPM.add(createDeadStoreEliminationPass()); // Delete dead stores
295 MPM.add(createLICMPass());
297 addExtensionsToPM(EP_ScalarOptimizerLate, MPM);
300 MPM.add(createLoopRerollPass());
301 if (!RunSLPAfterLoopVectorization) {
303 MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
306 MPM.add(createBBVectorizePass());
307 MPM.add(createInstructionCombiningPass());
308 addExtensionsToPM(EP_Peephole, MPM);
309 if (OptLevel > 1 && UseGVNAfterVectorization)
310 MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies
312 MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
314 // BBVectorize may have significantly shortened a loop body; unroll again.
315 if (!DisableUnrollLoops)
316 MPM.add(createLoopUnrollPass());
321 MPM.add(createLoadCombinePass());
323 MPM.add(createAggressiveDCEPass()); // Delete dead instructions
324 MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
325 MPM.add(createInstructionCombiningPass()); // Clean up after everything.
326 addExtensionsToPM(EP_Peephole, MPM);
328 // FIXME: This is a HACK! The inliner pass above implicitly creates a CGSCC
329 // pass manager that we are specifically trying to avoid. To prevent this
330 // we must insert a no-op module pass to reset the pass manager.
331 MPM.add(createBarrierNoopPass());
333 if (EnableNonLTOGlobalsModRef)
334 // We add a fresh GlobalsModRef run at this point. This is particularly
335 // useful as the above will have inlined, DCE'ed, and function-attr
336 // propagated everything. We should at this point have a reasonably minimal
337 // and richly annotated call graph. By computing aliasing and mod/ref
338 // information for all local globals here, the late loop passes and notably
339 // the vectorizer will be able to use them to help recognize vectorizable
340 // memory operations.
342 // Note that this relies on a bug in the pass manager which preserves
343 // a module analysis into a function pass pipeline (and throughout it) so
344 // long as the first function pass doesn't invalidate the module analysis.
345 // Thus both Float2Int and LoopRotate have to preserve AliasAnalysis for
346 // this to work. Fortunately, it is trivial to preserve AliasAnalysis
347 // (doing nothing preserves it as it is required to be conservatively
348 // correct in the face of IR changes).
349 MPM.add(createGlobalsModRefPass());
352 MPM.add(createFloat2IntPass());
354 addExtensionsToPM(EP_VectorizerStart, MPM);
356 // Re-rotate loops in all our loop nests. These may have fallout out of
357 // rotated form due to GVN or other transformations, and the vectorizer relies
358 // on the rotated form. Disable header duplication at -Oz.
359 MPM.add(createLoopRotatePass(SizeLevel == 2 ? 0 : -1));
361 // Distribute loops to allow partial vectorization. I.e. isolate dependences
362 // into separate loop that would otherwise inhibit vectorization.
363 if (EnableLoopDistribute)
364 MPM.add(createLoopDistributePass());
366 MPM.add(createLoopVectorizePass(DisableUnrollLoops, LoopVectorize));
367 // FIXME: Because of #pragma vectorize enable, the passes below are always
368 // inserted in the pipeline, even when the vectorizer doesn't run (ex. when
369 // on -O1 and no #pragma is found). Would be good to have these two passes
370 // as function calls, so that we can only pass them when the vectorizer
372 MPM.add(createInstructionCombiningPass());
373 if (OptLevel > 1 && ExtraVectorizerPasses) {
374 // At higher optimization levels, try to clean up any runtime overlap and
375 // alignment checks inserted by the vectorizer. We want to track correllated
376 // runtime checks for two inner loops in the same outer loop, fold any
377 // common computations, hoist loop-invariant aspects out of any outer loop,
378 // and unswitch the runtime checks if possible. Once hoisted, we may have
379 // dead (or speculatable) control flows or more combining opportunities.
380 MPM.add(createEarlyCSEPass());
381 MPM.add(createCorrelatedValuePropagationPass());
382 MPM.add(createInstructionCombiningPass());
383 MPM.add(createLICMPass());
384 MPM.add(createLoopUnswitchPass(SizeLevel || OptLevel < 3));
385 MPM.add(createCFGSimplificationPass());
386 MPM.add(createInstructionCombiningPass());
389 if (RunSLPAfterLoopVectorization) {
391 MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
392 if (OptLevel > 1 && ExtraVectorizerPasses) {
393 MPM.add(createEarlyCSEPass());
398 MPM.add(createBBVectorizePass());
399 MPM.add(createInstructionCombiningPass());
400 addExtensionsToPM(EP_Peephole, MPM);
401 if (OptLevel > 1 && UseGVNAfterVectorization)
402 MPM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies
404 MPM.add(createEarlyCSEPass()); // Catch trivial redundancies
406 // BBVectorize may have significantly shortened a loop body; unroll again.
407 if (!DisableUnrollLoops)
408 MPM.add(createLoopUnrollPass());
412 addExtensionsToPM(EP_Peephole, MPM);
413 MPM.add(createCFGSimplificationPass());
414 MPM.add(createInstructionCombiningPass());
416 if (!DisableUnrollLoops) {
417 MPM.add(createLoopUnrollPass()); // Unroll small loops
419 // LoopUnroll may generate some redundency to cleanup.
420 MPM.add(createInstructionCombiningPass());
422 // Runtime unrolling will introduce runtime check in loop prologue. If the
423 // unrolled loop is a inner loop, then the prologue will be inside the
424 // outer loop. LICM pass can help to promote the runtime check out if the
425 // checked value is loop invariant.
426 MPM.add(createLICMPass());
429 // After vectorization and unrolling, assume intrinsics may tell us more
430 // about pointer alignments.
431 MPM.add(createAlignmentFromAssumptionsPass());
433 if (!DisableUnitAtATime) {
434 // FIXME: We shouldn't bother with this anymore.
435 MPM.add(createStripDeadPrototypesPass()); // Get rid of dead prototypes
437 // GlobalOpt already deletes dead functions and globals, at -O2 try a
438 // late pass of GlobalDCE. It is capable of deleting dead cycles.
440 if (!PrepareForLTO) {
441 // Remove avail extern fns and globals definitions if we aren't
442 // compiling an object file for later LTO. For LTO we want to preserve
443 // these so they are eligible for inlining at link-time. Note if they
444 // are unreferenced they will be removed by GlobalDCE below, so
445 // this only impacts referenced available externally globals.
446 // Eventually they will be suppressed during codegen, but eliminating
447 // here enables more opportunity for GlobalDCE as it may make
448 // globals referenced by available external functions dead.
449 MPM.add(createEliminateAvailableExternallyPass());
451 MPM.add(createGlobalDCEPass()); // Remove dead fns and globals.
452 MPM.add(createConstantMergePass()); // Merge dup global constants
457 MPM.add(createMergeFunctionsPass());
459 addExtensionsToPM(EP_OptimizerLast, MPM);
462 void PassManagerBuilder::addLTOOptimizationPasses(legacy::PassManagerBase &PM) {
463 // Provide AliasAnalysis services for optimizations.
464 addInitialAliasAnalysisPasses(PM);
466 // Propagate constants at call sites into the functions they call. This
467 // opens opportunities for globalopt (and inlining) by substituting function
468 // pointers passed as arguments to direct uses of functions.
469 PM.add(createIPSCCPPass());
471 // Now that we internalized some globals, see if we can hack on them!
472 PM.add(createGlobalOptimizerPass());
474 // Linking modules together can lead to duplicated global constants, only
475 // keep one copy of each constant.
476 PM.add(createConstantMergePass());
478 // Remove unused arguments from functions.
479 PM.add(createDeadArgEliminationPass());
481 // Reduce the code after globalopt and ipsccp. Both can open up significant
482 // simplification opportunities, and both can propagate functions through
483 // function pointers. When this happens, we often have to resolve varargs
484 // calls, etc, so let instcombine do this.
485 PM.add(createInstructionCombiningPass());
486 addExtensionsToPM(EP_Peephole, PM);
488 // Inline small functions
489 bool RunInliner = Inliner;
495 PM.add(createPruneEHPass()); // Remove dead EH info.
497 // Optimize globals again if we ran the inliner.
499 PM.add(createGlobalOptimizerPass());
500 PM.add(createGlobalDCEPass()); // Remove dead functions.
502 // If we didn't decide to inline a function, check to see if we can
503 // transform it to pass arguments by value instead of by reference.
504 PM.add(createArgumentPromotionPass());
506 // The IPO passes may leave cruft around. Clean up after them.
507 PM.add(createInstructionCombiningPass());
508 addExtensionsToPM(EP_Peephole, PM);
509 PM.add(createJumpThreadingPass());
513 PM.add(createSROAPass());
515 PM.add(createScalarReplAggregatesPass());
517 // Run a few AA driven optimizations here and now, to cleanup the code.
518 PM.add(createFunctionAttrsPass()); // Add nocapture.
519 PM.add(createGlobalsModRefPass()); // IP alias analysis.
521 PM.add(createLICMPass()); // Hoist loop invariants.
523 PM.add(createMergedLoadStoreMotionPass()); // Merge ld/st in diamonds.
524 PM.add(createGVNPass(DisableGVNLoadPRE)); // Remove redundancies.
525 PM.add(createMemCpyOptPass()); // Remove dead memcpys.
528 PM.add(createDeadStoreEliminationPass());
530 // More loops are countable; try to optimize them.
531 PM.add(createIndVarSimplifyPass());
532 PM.add(createLoopDeletionPass());
533 if (EnableLoopInterchange)
534 PM.add(createLoopInterchangePass());
536 PM.add(createLoopVectorizePass(true, LoopVectorize));
538 // More scalar chains could be vectorized due to more alias information
539 if (RunSLPAfterLoopVectorization)
541 PM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
543 // After vectorization, assume intrinsics may tell us more about pointer
545 PM.add(createAlignmentFromAssumptionsPass());
548 PM.add(createLoadCombinePass());
550 // Cleanup and simplify the code after the scalar optimizations.
551 PM.add(createInstructionCombiningPass());
552 addExtensionsToPM(EP_Peephole, PM);
554 PM.add(createJumpThreadingPass());
557 void PassManagerBuilder::addLateLTOOptimizationPasses(
558 legacy::PassManagerBase &PM) {
559 // Delete basic blocks, which optimization passes may have killed.
560 PM.add(createCFGSimplificationPass());
562 // Drop bodies of available externally objects to improve GlobalDCE.
563 PM.add(createEliminateAvailableExternallyPass());
565 // Now that we have optimized the program, discard unreachable functions.
566 PM.add(createGlobalDCEPass());
568 // FIXME: this is profitable (for compiler time) to do at -O0 too, but
569 // currently it damages debug info.
571 PM.add(createMergeFunctionsPass());
574 void PassManagerBuilder::populateLTOPassManager(legacy::PassManagerBase &PM) {
576 PM.add(new TargetLibraryInfoWrapperPass(*LibraryInfo));
579 PM.add(createVerifierPass());
582 addLTOOptimizationPasses(PM);
584 // Lower bit sets to globals. This pass supports Clang's control flow
585 // integrity mechanisms (-fsanitize=cfi*) and needs to run at link time if CFI
586 // is enabled. The pass does nothing if CFI is disabled.
587 PM.add(createLowerBitSetsPass());
590 addLateLTOOptimizationPasses(PM);
593 PM.add(createVerifierPass());
596 inline PassManagerBuilder *unwrap(LLVMPassManagerBuilderRef P) {
597 return reinterpret_cast<PassManagerBuilder*>(P);
600 inline LLVMPassManagerBuilderRef wrap(PassManagerBuilder *P) {
601 return reinterpret_cast<LLVMPassManagerBuilderRef>(P);
604 LLVMPassManagerBuilderRef LLVMPassManagerBuilderCreate() {
605 PassManagerBuilder *PMB = new PassManagerBuilder();
609 void LLVMPassManagerBuilderDispose(LLVMPassManagerBuilderRef PMB) {
610 PassManagerBuilder *Builder = unwrap(PMB);
615 LLVMPassManagerBuilderSetOptLevel(LLVMPassManagerBuilderRef PMB,
617 PassManagerBuilder *Builder = unwrap(PMB);
618 Builder->OptLevel = OptLevel;
622 LLVMPassManagerBuilderSetSizeLevel(LLVMPassManagerBuilderRef PMB,
623 unsigned SizeLevel) {
624 PassManagerBuilder *Builder = unwrap(PMB);
625 Builder->SizeLevel = SizeLevel;
629 LLVMPassManagerBuilderSetDisableUnitAtATime(LLVMPassManagerBuilderRef PMB,
631 PassManagerBuilder *Builder = unwrap(PMB);
632 Builder->DisableUnitAtATime = Value;
636 LLVMPassManagerBuilderSetDisableUnrollLoops(LLVMPassManagerBuilderRef PMB,
638 PassManagerBuilder *Builder = unwrap(PMB);
639 Builder->DisableUnrollLoops = Value;
643 LLVMPassManagerBuilderSetDisableSimplifyLibCalls(LLVMPassManagerBuilderRef PMB,
645 // NOTE: The simplify-libcalls pass has been removed.
649 LLVMPassManagerBuilderUseInlinerWithThreshold(LLVMPassManagerBuilderRef PMB,
650 unsigned Threshold) {
651 PassManagerBuilder *Builder = unwrap(PMB);
652 Builder->Inliner = createFunctionInliningPass(Threshold);
656 LLVMPassManagerBuilderPopulateFunctionPassManager(LLVMPassManagerBuilderRef PMB,
657 LLVMPassManagerRef PM) {
658 PassManagerBuilder *Builder = unwrap(PMB);
659 legacy::FunctionPassManager *FPM = unwrap<legacy::FunctionPassManager>(PM);
660 Builder->populateFunctionPassManager(*FPM);
664 LLVMPassManagerBuilderPopulateModulePassManager(LLVMPassManagerBuilderRef PMB,
665 LLVMPassManagerRef PM) {
666 PassManagerBuilder *Builder = unwrap(PMB);
667 legacy::PassManagerBase *MPM = unwrap(PM);
668 Builder->populateModulePassManager(*MPM);
671 void LLVMPassManagerBuilderPopulateLTOPassManager(LLVMPassManagerBuilderRef PMB,
672 LLVMPassManagerRef PM,
673 LLVMBool Internalize,
674 LLVMBool RunInliner) {
675 PassManagerBuilder *Builder = unwrap(PMB);
676 legacy::PassManagerBase *LPM = unwrap(PM);
678 // A small backwards compatibility hack. populateLTOPassManager used to take
679 // an RunInliner option.
680 if (RunInliner && !Builder->Inliner)
681 Builder->Inliner = createFunctionInliningPass();
683 Builder->populateLTOPassManager(*LPM);